Bending-machine.



E. T. PALMENBERG.

. BENDING MACHINE. 975,7 7.

APPLICATION FILED IEBA, 1910.

Patented Nov. 15,1910.

2 SHEETS-SHEET 1.

WI T NE 885 8: e gmwm ATTORNEYS WITNESSES:

E. T. PALMBNBERG.

- BENDING MACHINE.

APPLICATION FILED FEB.4'. 1910.

Patented Nov. 15, 1910.

2 SHEETSSHEET 2.

IIVI EAITOR BKM ATTORNEYS THE NORRIS PETERS co., wasmucrozv, n. c.

, WTTED STATEB PATENT UFFTCE.

EMIL THEODORE PALMENBERG, OF NEW YORK, N. Y.

To all whom it may concern:

Be it known that I, EMIL T. PALMENBERG, a citizen of the United States,and a resident of the city of New York, borough of Manhattan, in thecounty and State of New York, have invented a new and ImprovedBending-Machine, of which the following is a full, clear, and exactdescription.

The object of the invention is to provide a new and improved bendingmachine, more especially designed for forming hooks on the supportingrods of garment hangers, and arranged to permit a number of such rods tobe acted upon simultaneously, with a view to form hooks of uniform sizeand shape, and irrespective of whether the rods under treatment at thetime are attached to the hangers or not. 1

For the purpose mentioned, use is made of a mandrel provided with a seatextending lengthwise of the mandrel, to receive the ends of the rods tobe bent, and a lever mounted to swing and provided with a bending barextending parallel to the said mandrel, the bending bar being adapted toengage the rods, to bend the same around the peripheral face of themandrel.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indioate corresponding parts in all theviews.

Figure l is a side elevation of the bending machine, with the rods to bebent inserted and the lever in starting position; Fig. 2 is a sectionalside elevation of the same; Fig. 3 is a like view of the same andshowing the parts in position after the bending operation is completed;Fig. 4 is a plan view of the bending machine with the lever in startingposition; and Fig. 5 is a sectional side elevation of the same andshowing the rods to be bent fixed to the hangers.

In a suitably constructed frame A, is secured a mandrel B, provided atone side with a seat O, extending lengthwise of the mandrel B at theperipheral face thereof. The seat O is adapted to receive the ends ofrods D to be bent, the seat C being so arranged that when the rods D arein position, as indicated in Figs. 1, 2, 4 and 5, then the rods extendapproximately tangentially relative to the mandrel B and in an upwarddirection, as will be readily understood by reference to the saidfigures.

Specification of Letters Patent.

Application filed February 4, 1910.

BENDING-MACHINE.

Patented Nov. 15, 1910. Serial No. 542,046.

The mandrel B and the seat C are of sufficient length to accommodate alarge number of rods D at a time and irrespective of whether the .rods Dare attached to the hangers D (see Fig. 5) or not, that is, prior tobeing attached to the said hangers.

The mandrel B is provided with reduced ends B, on which is mounted toswing a double armed lever E, provided with a bending bar F, extendingparallel to the mandrel B and spaced a distance therefrom, so that whenthe several parts are in position, as shown in Figs. 1, 2, 4L and 5, andthe lever E is swung upward and forward in the direction of the arrowat, then the bending bar F engages the several rods D and bends the samearound the peripheral face of the mandrel B, as indicated in Fig. 3, toform hooks D on each of the rods D. The rods D in beingbent over themandrel B come in contact with an abutment bar G to bend the rods on thebending bar F as a fulcrum, the said abutment bar G also serving tolimit the swinging motion of the lever E. The abutmentbar G is providedat its ends with arms G, having segmental slots G through which extendbolts H, screwing in the sides of the frame A, to adjustably hold thearms G in position on the frame A. Now by the arrangement described, thearms G can be adjusted on loosening the bolts H, so as to move theabutment bar G farther forward or rearward, to give more or less bend tothe rods D. g

The bending bar F is preferably provided with a contact edge F, forengagement with the rods D, so as to insure an easy bending of the rodsaround the mandrel B, also to insure easy bending of the rods D betweenthe bars F and G, as indicated in Fig. 3. After the rods have been bentto form the hooks D the lever E is swung back to starting position, andthen the rods D are unhooked from the mandrel B, and the parts of thebending machine are now again in position to receive another set of rodsD to be bent in the manner above specified. In Fig. 5 the rods D areshown as fixed to the garment hanger D The machine shown and describedis very simple and durable in construction, and can be readilymanipulated to quickly and accurately provide hanger rods or the likewith hooks as above mentioned.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent:

1. A bending machine, comprising a fixed mandrel having an uppercylindrical face, and a longitudinally extending shoulder at one side ofthe mandrel provided with a recess opening at the top of the shoulder atthe inner side thereof and forming a seat extending lengthwise on theperipheral face of the mandrel to receive the ends of the rods to bebent, the inner wall of said recess merging into the upper cylindricalface of the mandrel, and a lever fulcrumed on the ends of the fixedmandrel and having a bar adjacent to said mandrel and extending parallelthereto, the said bar being adapted to engage the rods to bend the samearound the cylindrical upper surface of the mandrel on imparting aswinging motion to the lever.

2. A bending machine comprising a fixed mandrel having an uppercylindrical face and a longitudinally extending shoulder at one sideprovided with a recess o ening at the top of the shoulder at its inneredge and forming a seat extending lengthwise on the peripheral face ofthe mandrel to receive the ends of the rods to be bent, the inner wallof said recess merging into the uoper cylindrical face of the mandrel,the said mandrel having reduced ends, a double armed lever fulcrumed onthe reduced ends of the mandrel and having a bar extending parallel tothe mandrel and adapted to engage the rods to bend the same around thecylindrical upper surface of the mandrel on imparting a swinging motionto the lever, and an abutment bar parallel to the mandrel, and located,on the side of the mandrel opposite the side having the said seat, forengagement by the said rods on bending the latter around the mandrel.

3. A bending machine, comprising a fixed mandrel having a seat extendinglengthwise on the peripheral face of the mandrel to receive the ends ofthe rods to be bent, a lever having a bar extending parallel to the saidmandrel and adapted to engage the rods to bend the same around themandrel on imparting a swinging motion to the said lever, an abutmentbar parallel to the mandrel and located on the side of the mandrelopposite the one having the said seat, for engagement oy the said rodson bending the latter around the mandrel, and adjustable arms carryingthe said abutment bar.

4. A bending machine, comprising a frame, a mandrel fixed on the saidframe and having a seat extending lengthwise along one side of themandrel at the peripheral face thereof to receive the endsof the rods tobe bent and to hold the rods in a tangential position relative to themandrel, a lever fulcrumed on the said mandrel and provided with a barextending parallel to the said mandrel and spaced from the same, anabutment bar having slotted arms, and bolts for adjustably fastening thesaid arms to the said frame to hold the abut ment bar in position.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EMIL THEODORE PALMENBERG.

Witnesses:

A. O. PORTEOUS, WM. L. ALLAN.

